Added array type

lib/io/io.q

@@ -1,21 +1,21 @@
 import sys
 
-in(buffer Pointer) -> Int {
+in(buffer []Int8) -> Int {
 	return sys.read(0, buffer, len(buffer))
 }
 
-out(message Pointer) -> Int {
+out(message []Int8) -> Int {
 	return sys.write(1, message, len(message))
 }
 
-error(message Pointer) -> Int {
+error(message []Int8) -> Int {
 	return sys.write(2, message, len(message))
 }
 
-read(fd Int, buffer Pointer) -> Int {
+read(fd Int, buffer []Int8) -> Int {
 	return sys.read(fd, buffer, len(buffer))
 }
 
-write(fd Int, message Pointer) -> Int {
+write(fd Int, message []Int8) -> Int {
 	return sys.write(fd, message, len(message))
 }